I have a 95 eg coupe, it has a Jdm gsr B18c, and it is boosted and built. This is my first thread so i dont know how much info someone needs to help me......but my problem is i am trying to figure out what is a good gear ratio to run on a turboed car. I was told that short gears are great for drag racing, but then i was also told that since im boosted i should run longer gears.....I need a more offical answer and alot more than a guess,,,i need someone with knowledge to help me out here. Im looking at final gear ratios by the way. PLEASE HELP ME!!!!!

 

Keep your GSR gearing and if anything just install a LS final drive.

 

Ls final drive just helps on the highway if I'm not mistaken. But I don't see how some racers see 130-14mph at the track, I assume there driving into 5th at that point

 

A LS final drive affects all gears and will keep you gear longer in all gears vs a GSR final gear.

 

Interesting, I didn't know that. Now I'm wondering if I should switch mine out since I'm going to do a semi rebuild + adding an LSD. Yes my car driven mostly, but will adding a ls final decrease the vehicle acceleration between gears? Damn I just stole this topic and asked some basic questions

 

HAHA. Yes you will loose some acceleration due to the taller final drive. That is the reason you see people that are boosted recommend taller gears like a LS tranny so they don't have to shift as quickly. The added power makes up for the longer time and slower acceleration you spend in any certain gear.

A 500 hp civic with a gsr tranny will be quicker than the exact same 500 hp civic with a ls tranny due to the shorter gearing.

 

Gearing isnt an issue if you are spinning every gear anyways. A longer 4th gear (LS FD) is nice when you are hitting your rev cut before the line.

 

Its even less of an issue if one knows how to drive and not spin in every gear so that its not an "anyways". If you're hitting fuel or boost cut before redline, either the person is trying to be safe, or they didn't set their setup may not be tuned correctly.

OP. Keep the GS-R gearing and go have a good time.

 

So it seems that for boost i should use an ls final drive and for the all motor racers they use short gears......since i stay in each gear longer i retain my boost longer instead of loosing it everytime i shift when the blow off valve realeases the pressure.......is this what everyone has agrreed on for the most part?? LS FINAL DRIVE, GOOD FOR ME.....GSR FINAL DRIVE, NOT AS GOOD FOR ME??

 

Haha I want to see this high hp driving skill in practice.

 

honestly just keep it simple and keep the gsr tranny and fd.

I've seen some guys use the 4.2 LS fd in their drag cars mainly for trying to get 3-5mph more on their top speed in 4th.

 

NO.. don't get into that "stay in boost longer" logic.. All the first timers fall for that **** and it never makes sense. YOU LOSE ACCELERATION.

Just stay with stock GS-R FINAL DRIVE. Last time I'll reiterate it, then you're on your own on that one..

 

What is your reasoning for wanting longer gears? Just because you were told they are better for boosted cars???

I would not bother swapping anything. The GSR is a great tranny IMO!!!

If it ain't broke don't fix it!!!

 

wanted to know about the final drive because i wanted to have my fastest possible time for a quarter mile......plus my tranny is messed up and needs new sycros so i was going to do a rebuild but i wanted to make sure i made the right choice b4 i did it.

 

Then stay stock GS-R and don't overthink..

 

Thanks for everyones help, really apreciated.